[PATCH v8 3/8] iommu: introduce an msi cookie

From: Eric Auger
Date: Thu Apr 28 2016 - 04:15:49 EST


This opaque pointer will enable to store information about msi
iommu mappings.

Signed-off-by: Eric Auger <eric.auger@xxxxxxxxxx>

---
v7 -> v8:
remove spinlock and RB tree

v5 -> v6:
- initialize reserved_binding_list
- use a spinlock instead of a mutex
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index ea5d288..cb8d30a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -91,6 +91,7 @@ struct iommu_domain {
struct iommu_domain_geometry geometry;
struct iommu_domain_msi_geometry msi_geometry;
void *iova_cookie;
+ void *msi_cookie;
};

enum iommu_cap {
--
1.9.1